3CX FQDN Management and Allocation - FAQs
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FQDN Management and Allocation

FQDN Management and Allocation

On this topic

FQDN Management and Allocation

Introduction

3CX Provided Domain

Customer Own Domain

Altering the FQDN

For Commercial & PBX Edition Licenses:

For NFR Keys:

Summary

See also

Introduction

On the first time installation of 3CX V15 the license key will be bound to the freely chosen FQDN by the administrator. Therefore, the administrator would need to select the FQDN carefully during the first time installation.

3CX Provided Domain

Starting with V15, customers with valid maintenance can receive an external DNS entry within certain 3CX top level domains - free of charge. On top of those managed FQDN - users will also be supplied with a state of the art widely trusted SSL certificate issued by Let’s Encrypt.

Keep in mind, once you have deviced on the userpart of the FQDN (userpart.hostpart.tld), this is bound to the license key. For evaluation tests with free issued “PBX Edition Keys” it is recommended not to chose your own company name, as it will prevent this FQDN from being used by your main production license key.

While the user part of the FQDN is bound to the license key, the top level domain can be altered at any time. Therfore it is possible to change from company.3cx.eu to company.3cx.us. Also, the userpart of the FQDN must be unique across all 3CX top level domains to ensure the business integrity. The allocation is on a first come first serve basis. So reserve your FQDN today by switching to v15.

Note: 3CX reserves the right to revoke any FQDN which might breach another company’s trademark rights, being of an offensive or racistic nature, without any warning. Also users have no right to claim an FQDN which is already in use.

Customer Own Domain

In case the installation is installed on a customer owned domain also a valid public trusted certificate covering the 3CX installation must be present during installation. No Let’s Encrypt Cert can be issued in this case by 3CX.

Also, in this case the license key will be bound to the customer FQDN. However the rules for binding FQDNs are slightly different. Assuming the installation is performed for company.mybusiness.com. The prerequisite for this is that the domain companymybusiness.3cx.* is not already taken. This FQDN is needed for the creation of the corresponding web meeting access point.

Altering the FQDN

In the case that a license key is free from an already mapped FQDN in order to assign it to a new FQDN, this must be performed via the ERP (https://erp.3cx.com) by releasing the domain back into the pool.

For Commercial & PBX Edition Licenses:

For NFR Keys:

Contact the 3CX Support department via the ticket system (https://helpdesk.3cx.com). Provide the support team with the license key in question and for validation reasons please also provide the assigned FQDN to this key.

Summary

  1. First time installation binds the FQDN to the key
  2. In case the chosen FQDN is already in use:
  • Error creating FQDN: FQDN already in use. Please choose another one
  • Solution: Pick another free FQDN
  1. Subcentral installation of the same key required to enter the same FQDN
  2. In case the entered FQDN does not match:
  • Error creating FQDN: License key already bound to another FQDN.
  • Solution A: Login to the erp.3cx.com and check what the binded FQDN is
  • Solution B: Login to the erp.3cx.com and release the FQDN to choose a new one

See also

You might also be interested in:


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